No, they are quite similar:
1. Both feature red backlighting.
2. Bot have low travel laptop style keys.
3. Both are rubber domes.4
4. Both are marketed as being gaming keyboards.
5. Both require intellitype software to access certain features.
They aren't the same keyboard but they are definitely in the same class of keyboards and can/should be compared when deciding to purchase one or the other.
I care about the tactile feeling, the keyboard quality, and the additional features.
The X6 is best in class as design, backlit color, useful additional goodies but is one of the crappiest keyboard I ever seen about the tactile feeling.
The X4 has less additional features but is more than a decent keyboard on its primary function.
The reclusa has the usual ugly blue lightning, is a bit bulky but is one of the best dome keyboard i ever touched.
The reclusa is made by razer, X6 and X 4 are made probably by two different oem supplier.
In short they have nothing in common other than the (final) brand
Edited by The Solutor - 3/25/11 at 9:54pm